There is no authority to reverse anything or force anyone to do anything.
There is,
bitundo.com gives you an opportunity to get your coins back, but the transaction can only be reversed if it haven't got any confirmations, which in this case, has more than 3 confirmations unfortunately.
I never heard of Bitundo until yesterday when someone else said they had btc stolen. But someone posted that it didn't work:
Wow! Interesting share! Have you ever tried this site?
I don't think its legit! I will try it right now and edit this post

No. I have never tried. I'd be interested in your feedback as well...
It doesn't work

The last "Next" button doesn't work no matter how much you click it or how hard you click it
